I feel like all of the security of passkeys could have been build in a compatible way with new standards and enhancements to existing password interactions.
Easy and Secure are often at odds.
I am using a password manager, I have a passkey saved in it. Should that service go down or have some kind of software problem with that passkey, I have physical ones which also can work for offline services such as my OS logins.
"Okay, my password manager is now a program. Oh no, program won't run. Not sure why!"
"Glad I have these physical passkeys! Also helps with those airgapped servers at work!"